Nondestructive Analysis of Textures in Rolled Sheets by Ultrasonic Techniques
نویسندگان
چکیده
منابع مشابه
Nondestructive ultrasonic evaluation of formability of metallic sheets
An indication of the formability of metallic sheet is determined using a correlation between nondestructively measurable ultrasonic properties and a formability index. A calibration relation is initially established by measuring ultrasonic velocities at various angles to the rolling direction of sheet specimens with noncontacting electromagnetic acoustic transducers, calculating an ultrasonic c...
متن کاملLaser Ultrasonic Characterisation of Rolled Steel Strip: Wave Propagation in Inhomogeneous Thin Sheets
For the production of hot rolled steel it is of special interest to assess the homogeneity of the material along the length of the strip. Being couplant free, laser ultrasound as a method is especially suited for the task because it opens up the opportunity of measuring material parameters early in the production process. Detailed models of the ultrasonic signal are needed though in order to ex...
متن کاملAttenuation of ultrasonic waves in rolled metals.
Scattering of ultrasonic waves in polycrystals with texture is studied in this article. The attenuations of the three wave modes are determined as a function of dimensionless frequency and propagation direction, respectively, for given orientation distribution coefficients (ODCs). The calculation is done in the case of a statistically orthorhombic sample made up of cubic crystallites. The wave ...
متن کاملTopological Sensitivity Analysis in the Context of Ultrasonic Nondestructive Testing
Abstract. The aim of the topological sensitivity analysis is to determine an asymptotic expansion of a shape functional with respect to the variation of the topology of the domain. In this paper, we consider a state equation of the form div (A∇u) + ku = 0 in dimensions 2 and 3. For that problem, the topological asymptotic expansion is obtained for a large class of cost functions and two kinds o...
متن کاملDry Friction and Wear Performance of Micro Surface Textures Generated by Ultrasonic Assisted Face Turning
Nowadays the surface texturing has been widely recognized as a usable capability to improve the tribological systems. In this paper, ultrasonic assisted turning (UAT) isperformed to create the micro textures on the flat faces. Micro surface texturing ismade on the Al7075-T6 by the UAT in the face turning process. Then, the influences of cutting speed feed, vibration direction and vibration ampl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Textures and Microstructures
سال: 1990
ISSN: 0730-3300,1029-4961
DOI: 10.1155/tsm.12.219